【摘要】 本文研究丙烯腈的等离子体聚合过程。探讨了聚合规律、聚合物形态和性质与各反应条件的依赖关系。结果表明聚丙烯腈(PAN)的淀积速率明显地取决于单体分压和放电功率,较小的单体分压有利于形成均匀致密的薄膜;聚合时加入非聚合性气体(Ar)将改变PAN的淀积分布,并一定程度地改善膜的韧性;膜在不同材料基底上的附着力大小次序为金属(Pt、Cu、Ti)>半导体(Si、GaAs、GaP)>玻璃。IR光谱分析得出等离子体聚合的PAN结构比较复杂,具有较高的交联度。更多还原

【Abstract】 The polymerization process of acrylonitrile by using plasma was studied. The dependence of polymeric regularities, configuration and properties of polymer on some reaction conditions has been explored.Results demonstrated that deposition rate of polyacrylonitrile, PAN, is dependent obviously on monomer partial pressure and discharge power. Lowering monomer partial pressure is advantageous to the formation of uniform and compact film. Distribution of deposits could be changed by mixing Ar in the tube during polymerization. By this way, the film tenacity can be improved to a certain extent. Firmness of the film adhered to the substrates was found in the order of metals (Pt. Cu and Ti)>semiconductors (Si, GaAs and GaP) >glass. IR spectrum analyses showed that PAN prepared by plasma polymerization is more complicated and higher cross-linked.更多还原